Erro ao acessar o banco!

java.security.AccessControlException: access denied (java.net.SocketPermission ip_do_servidor_sqlserver:1433 connect,resolve)
	at java.security.AccessControlContext.checkPermission(AccessControlContext.java:269)
	at java.security.AccessController.checkPermission(AccessController.java:401)
	at java.lang.SecurityManager.checkPermission(SecurityManager.java:524)
	at java.lang.SecurityManager.checkConnect(SecurityManager.java:1026)
	at java.net.Socket.connect(Socket.java:446)

public class PoolConexao {
	static Connection conn;
	public static Connection getConexao(){

		System.out.println("Pool");
		
		try{
			Context initContext = new InitialContext();
			Context envContext  = (Context)initContext.lookup("java:/comp/env");
			DataSource ds = (DataSource)envContext.lookup("jdbc/PCSQL");
			***conn = ds.getConnection();
			return conn;
		}catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}
}